<!DOCTYPE html>
<html lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/day02/getParam" method="post">
    用户名：<input type="text" name="username"><br>
    爱 好：<input type="checkbox" name="hobby" value="football">
    足球 <input type="checkbox" name="hobby" value="basketball">
    篮球<br> <input type="submit" value="提交">
</form>
</body>
</html>